STI-13300NC Clear Universal Stop Cover Without Horn

Product Description

The SAFETY TECHNOLOGY INT'L INC STI-13300NC is a clear universal stopper cover designed for fire alarm pull stations. It mounts over existing pull station hardware to deter unauthorized or accidental activation without obstructing access in a genuine emergency. The clear polycarbonate-style housing keeps the pull station visible at all times. This unit ships without an integrated horn, making it suited for installations where an audible local alert is not required or where a separate sounder is already part of the system. Fire alarm technicians and licensed electricians install this type of cover as part of a vandalism-reduction or tamper-deterrence strategy.

This cover is intended for use over pull stations in commercial, institutional, and light industrial environments where false alarms are a recurring issue. Typical installations include schools, hotels, apartment corridors, and manufacturing facilities. The universal fit is designed to accommodate a broad range of standard pull station form factors. Because this model does not include a horn, it is commonly selected for areas where local alarm noise is managed at the panel level or through dedicated sounders already installed nearby.

Key Features

• Clear housing keeps the pull station fully visible without removing the cover
• Universal stop cover design intended to fit a wide range of standard pull stations
• No integrated horn — suitable for installations with existing remote sounders
• Deters accidental and unauthorized pull station activation
• Single-unit packaging for straightforward field installation

Compatibility

Designed as an OEM-style replacement and protective cover for standard residential and commercial fire alarm pull stations.

Installation Notes

Installation is typically performed by a licensed fire alarm technician or electrician in accordance with local fire codes and NFPA 72 requirements. Disable or isolate the fire alarm circuit at the panel before working on or around the pull station to prevent accidental system activation. Ensure the cover seats flush and does not interfere with the pull station mechanism before restoring system power. Verify with the authority having jurisdiction that the use of a stopper cover is permitted at the intended location.